Spool-holdibtg spindle



C. A'. PALMGREN. SPOOL HOLDING SPINDLE. APPUCATION FILED MAILZI. 1918.

1,316,638. Patented Sepnggs, 1919.

UNTTED sTATEs f PATENT oFrioE.

CARL A. PALMGTREN, 0F CHICAGO, ILLINOIS.

sPooL-HoLmNG sPiNDLn.

- thread, wire, cord or the like is wound thereon during the rotation-of the spool. It has for its object to provide such a spindle with' improved means for receiving and holding spools of various interior diameters,where by the trouble and expense lncidentto supplying a special spindle or spindle attachment for each size of spool is obviated. It is a further object of the invention to so construct 'the spool-holding means that .a

spool can be quickly placed in position upon the spindle, and upon the conclusion of the winding operation the wound spool can be readily disengaged and withdrawn from the spindle notwithstanding that the' yarn or other material upon the spool has. been so wound thereon, as is commonly done, as. to have its spiral coils extend well down.`

over the ends of the spool, the Withdrawal being eifected without any manual manipulation .of the spindle or any of the parts carried thereby, but accomplished wholly. by a pull on the finished product so as to cause it to contact the spool-holding de vices and force them out of engagement with the spool. Theseobjects I Aaccomplish by the constructions shown iii the drawings and hereinafter particularly described. That which I-believe to be new will be pointed out in theclaims.

Figure 1 is a side elevation of a spindle embodying my improvements;

Fig. 2 isa longitudinal central section through the device of Fig. 1, and showing. in dotted lines the outline of a wound spool in place thereon; r

Fig. 3 is an end viewlooliingv from the left in Fig. 1;

FigA is a cross-seetion taken at line 4 4 ofFig.2;and H Fig. 5 isv a cross-section taken at line 5-'5 of Fig. 2.

Referring to the several figures, 10 indicates a'hollow cylindrical spindle member in Specification of Letters Patent. Patented Sept, 23, Application led March 27, 1918. Serial No. 224,931. I

which is snugly fitted a core 11 that ezitends from. end to end of the member 10, and

which may be secured by a screw 12, or in anyA other suitable-manner. The core is shown as havinga central opening 13 exitending therethrough, and provided also with 'a Vplurality of longitudinal passages 14,-four in number in the `construction shown-' spaced equally from each other.

Such passages are shown as formed by slottingthe surface of the core. In each passage -14 is located a coiled spring 15 made or other material is to be wound thereon.

Such head, as shown, comprises a plurality.

of separated 'segments 17. The number of such segments corresponds to the number of longitudinal passages 14C, and the spaces between the lsegments are located opposite the ends of the said passages so that the coiled springs that are secured in suchV passages may extend respectively into said spaces. 4In each of these slots or spaces in the head' that is formed, as stated, of the segments, is fitted so as to move freely up and down therein, a block 18. To each block is attached the forward end of one of the coiled springs 15 by means of a screw -or pin 19, or otherwise. Means for retaining and guiding the blocks in their respective provided, consisting, in the construction shown, of two' diagonal 'slots 2O formed in one face of each block into each of which projects a pin 21 secured near the' outer edge of the adjacent segment. ends ofthese diagonal slots 20 are closed, as clearly shown in Fig. 2, which prevents the blocks from moving out of their respec- The inner tive spaces in the head. The inclination of the slots 20 is such that the tension of the -coiled springs tends to hold thev blocks 184 ward toward the axis of the head to such an extent that their outer edges will not ex tend above the curved faces of the segments. As such inward movement of the blocks takes place, the blocks will also move forward and project beyond the segments, due

to the engagement of the' pins 21 with 'the inclined slots 20. In Fig. 2, the blocks are shown as being moved slightly to such a position. The en'ds of each block are curved to -facilitate theplacing of a spool thereon and its removal therefrom. f

With the device shown in Figs. .1 to 5, and hereinabove described, the operation is as follows: A spool, such for example, as that indicated in dotted outline in Fig. 2 and marked b, is to be pressed at its open end against the rounded outer ends of the blocks 18; such lpressure will force the blocks inward land 'forward against the pull of the. springs '15 sufficiently to allow the spool to be moved fully onto the `:.blocks, Where it will be frictionally held by reason of the. outward pressure that the springs cause the blocks `to exert. The rounded edges of the blocks against which the spool is first forced, of course, facilitate the placing of the spool in position, as will be understood. The en'd of the thread or other material that is to be Wound upon the spool is made f-ast under a spring clip 22 on the member 10, and the spindle as a Whole is then revolved and otherwise moved as is usual to causespiral windings ofthe material on the spool, such windings extending over the ends of the spool as far as the surface of the member 10, as indicated by dotted lines in Fig. v2, where such material is 'indica-ted by a. The withdrawal of the wound spool by a pull thereon will, therefore, bring the overhanging wound material at the inner end of the spool against the curved inner ends of the severalblocks 18, but as such blocks will readily-move inw-ard i against the pull of theirrespective coiled springs the wound spool is easily slipped ofi'l the blocks.

Bymy improvements the same devices can be utilized for holding equally well spools of various sizes.

What' I claim as my invention, and desire to secure by Letters Patent, is

l. In a device of the class described, the combination with a vspindle member, of a plurality of spring-pressed rigid blocks for.

frictionally engaging the interior wall of a spool, each of said blocks' being independently and bodily movable inwardly ofthe spindle member and to the same extent throughout its length when pressure is a'pplied to the outer edges of the blocks by the forcing of a spoolthereover.-

2. In a device of the class described', the combination with a spindle member, of a plurality of radially arranged spring-- pressed rigid blocks for frictionally engag- 1,sie,ese

ingthe interior wall of a spool, each ofsaid blocks being independentlyand bodily mova'bleinwardly of the spindlemember and t-o the 'same extent throughout its length when pressure is applied to the outer edges of the blocks by the forcing'of a spool thereover. 3. In a. device of the class described, the combination with a spindle member, of a plurality of spring pressed blocks for fric-' teri-or diameters, and spring means located vin said spindle member and connected with said blocks for holding said lblocks normally proj ected.`

5. lIn a device of the class described, the

combination of a liollowspindle member, a

slotted head connected to one end thereof,'a

plurality of blocks slidingly mounted in said4 headfor engaging spools of different interior diameters, and a coiled spring for each block, said. springs each arranged longitu-` dinally of and within the spindle member and secured at one end to such member and at thelother end to a block, said springs normally holding said blocks projected.

6. In a device of the class described, theo f combination with a spindle member having a plurality of longitudinal passages therein and a coiled spring secured `in each of such passages, of a slotted head connected with one end of said spindle member, a plurality of blocks slidingly mounted in said head for frictionally engaging spools of different vinterior diameters, said springs beino' connected with saidiblocks and normally holding them projected, and means forguiding the movements of said blocks.

7. In a device of the class described, the

a plurality of longitudinal passages there- `in and a coiled spring ysecured in each of such passages, of a slotted head connected with one end of said spindle member, a plurality of blocks slidingly mounted -in said headfor frictionally engaging spools of different interior diameters, said springs berco ing connected with said blocks and nor-V mally holding them projected, and inclined guiding means to compe'l a longitudinal movement of the blocks simultaneously with their inward ,and'outward movement.

8. In a' device of the class described, the combination of a spindle, -slotted head con- 115' combination with a spindle member having Y nected to* oneA end thereof,` a pluralityof Iradintllyarre.nged blocks slidingly mounted in said:heedjfor'engaging the interior :Wall

of zi spool, and spring means connected with the inner edgesl of the blocksfor. holding the blocks normally projected. fl

In a. device of theclass described, (the 'Combination ofr'zi spindle,- a slottedjhead connected to'onefend thereof, e plurality of radl'allv-arranged blocks slidingly mounted in said head for engaging the interiorfwall -of 1 spoolhspiring means connected with the inner edges ofthefiblocks-for'-zh0lding the '"blocks normelly projected,` and inter-engaging VIneens on Said head Vund elvchfof said Abloc-ks for preventingv Withdrawal of the Wall of a' spool, 'S'pring means connected with'the inner edges of the blocks for holding the blocks normally projected, and inter-engaging men 0n seid head and -e'ech of seid blocks Ifor preventing Withdrawal of the Vlo-looksfrom the heed, seid means comprising a pin affixed to one of seid parts and n slot in the other'of `said parts, one end of suehf 'slot being' closed` 11. ImaF device of the class described, the combina-tion of a spindle, a slotted head connected to one end thereof, a )plurality of ra ,".diellyearranged blocks l'sldingly 'mounted in said head for engaging the interior Wall ofY a spool, 'spring means connected with the inner edges` of the vblockefor holding the lolooks normally projected, and means on said head and each of said blocks for compelling a longitudinal movement of each block simultaneously with .its projection or retraction.

' CARL A. PALMGREN. 

